Bark peeling machine



March 1, 1932.

W. L. MINGLEDORFF BARK FEELING MACHINE s Shets-Sheet Filed July 10 1929A TTORNEY.

March 1, 1932.

W. L. MINGLEDORFF BARK FEELING MACHINE 3 Sheets-Sheet 2 Filed July 10,1929 I N VEN TOR.

WazterL-flfiiggledorfif ATTORNEY.

March 1, 1932. w, MlNGLEDCRFF 1,847,971

BARK FEELING MACHINE Filed July 10, 1929 5 Sheets-Sheet 3 Q INVENTOR. mWalzerfijfllyledorff g ATTORNEY.

Patented Mar. 1, 1932 UNH P IQQ FICSE LEEMINGLEDQRFEyOFflAEANNAH,-.GECRGI.A

Application ru s July -r0,

This inventionrelates to a machine forpee'I- ing bank from logs' and hasfor its primary obj ect to provide, in a manner as hereinafter setforth, a machine of such class whic h "is capable of automatically 1adjusting itself I to the periphery-of a log-'having-ayarying-di-*am'eter and -whioh may be effectively used in connection with eitherstraight or crooked 1 oi g drawings wherein is shown an embodiment ofthe invention, but it 1 is to be understood that the description anddrawings-are "to be taken "as illustrative, and that the inwention-isintended to be limited only by the s scope of the claims hereuntoappended.

In the accompanying drawings in which like numerals are employedtodesignate lli-ke parts throughout the same Figure 1 is a top plan of amachine in ac- L130 'eord'ance withthis invention.

Figure 2 is a vertical, longitudinal section rtherethrou'gh.

lfili'gureii3 is a verticah transverse seetlon V therethrough ta ken at:a point indicated by .35 the lin'e3--3 of IFigure'Q. I 1

JFigure'A is -a ":vertical, transverse section theretlrrough -'taken ata point indicated "by the line 4-4 of *FigureQ.

.iFigurefiiisr-an enlarged, fragmentary, ele- 4,0 vationof :the carriage'for the cutter r-mechanism. aEigure'o is-a fragmentary, vertioal'section through the oarriage.

ilfigure 7 is an elevation=of the:carriage 7 4 5 taken atv'a :right'angle to Figure '5.

:Figure '8 is a fragmentary seotion o'f the :cutter :.arn1.,:sh0wing themounting 'there'o'f withzrespect tothe operating shaft.

Figure *9 is :a fragmentary sectional plan QfitllGi cutter warm and cutter carried thereby;

1929. Serial No. 377193.

iReferring to the drawings in detaihithe i numeral 1 indicates a framevwhich is preferablyof skeleton eonstructio'mas shown. R0- ;ta'tablysupported'by-the'frame and extending longitudinally thereof is anoperating shaft -2 upon one end of which is fixedly secured a drivepulley 3;: Fixedly secured to the opposite end-ofthe'operating sha-ft Qis a pinion r A which is :in mesh with a'gear 5 fixedly -1nounted on-astub-shaft '6, the respective ends of-*Whih V are j our-na led 1 in theframe '1 and a hearing? suitablysupported {in spaced relation to "the 1frame. *Fixedly secured to the stub shaft issa pinion 8 which is'inmeshwithxa gear 9 fixedly mountedona shaft 10 -rotatably,=supported by the:frame 1 and a hearinglllsuitahly supported in spaeedrelastionito Itheframe. lFixedly mounted on the shaft -'l0 i-s a-sproket '12 which isoperative'ly "connected by imeans of a :ohain '13 with "a sprocket '14i'fixedly mountedson an externally ithreaded shaft '15 whichisfsuitab'lyjournaledrin the frame l andiextends longitudiv-nallj:thereof in parallelrelation 'to the operating'sha ftQi 1 V v Disposed:within the frame, in alignment with respeet to the length thereof, is apair of l'og su pportingxand adj ustingmembers 16. The membersl'd arearranged: in spacedirela- Ltion, one-adj acent- -eaoh end of'the frame,and

each include-s anelongated base 17 dispose'd' transversely of 'the frameand formed with a slot 18 extending longitudinally 1 there- :through andprovided-with an inclined: upper wall Seated on the' base 17, centrallythereof,- is ahollow member 20, the inner wall of 'whieh is in registrywith the wall of an opening 21 formed i through the top of'the "base 17and communicating with the slot 18. -Slidably extending-through'thehollow mem- "ber 20 is a -post 22, upon theupper-end of which is mounteda substantially N s'haped head23, 'The lower end of the post22is adaptedto proj eet 'intothej slot 18 and is; preferably formed 'with*aninclined face-corresponding to'the upper wall-of the slot 1 8 Adaptedto slidabl extend through the 'slot -1'8 is i a wedge 24, the upper wallof which is inolined to correspond to the upper wall of "the slot 18.The wedge "'24 for each o'f the crank 26 fixedly secured to a rod 27rotatably supported by the frame 1 and extending longitudinally thereof.The-rod 27 is provided with an operating lever 28 having a suitablelatching mechanism 29 for engage ment with arack 30 carried by the.frame 1, adjacent one end of the latter.

Fixedly secured to the inner end of the shaft 10 is a logcenteringelement 31', the inner face of which is formed with a pluralityof spurs 31' for engaging one end of a log, not shown. The element 31 islocated adjacent one of the members 16 and'is disposed in alignment,longitudinally of the machine, with the vertical planes ofthe members16. Extending through the frame 1, at the opposite end thereof from theelement 31, is a log engaging element 32 which consists of a threadedshank 33 formed with a pointed inner end 34 and provided at its'outerend with a hand wheel 35. Supports 36 and 37 re spectively are providedforthe'shaft 10 and shank 33, such supports being located adjacent theinner faces of the ends of the frame 1.

The element 32' is in alignmentwith the element 31 and with the verticalplanes of the members 16, longitudinally of the machine. Mounted on theoperating shaft 2 is a cutter mechanism indicated generally 'bythenumeral 38 and including a sprocket sleeve 39 suitably keyed tothe shaft2 to rotate therewith and to provide for longitudinal movementwithrespect thereto. The sleeve 39 is providedwith a pair of spaced,circumferentially extending flanges 40, between which are secured aplurality of teeth 41. The teeth 41 are arranged in spaced relation andproject a substantial distance from the peripheral faces of the flanges40. Carried by the sleeve 39 is a cutter arm 42, one end'of' which isprovided with'a bifurcated bearing 43 which is .rotatably mounted onthesleeve 39 by means of apair of bearing caps 44. The hearing caps 44 aredisposedon opposite sides of the flanges and the latter extend withinthe bifurcated end of the arm 42.

The opposite end of the arm 42 is formed with a bifurcated,horizontally. apertured head 45 through which a horizontally disposedspindle 46 extends. The spindle 46 is formed with apair of spacedshoulders 47 and 48 whereby a portion 49 of the spindle is proii .videdwith a greater diameter than the adjacent portions 50 and 51. Mounted onthe portion 50 to rotatetherewith is a sprocket52 which is disposedwithin the bifurcated head 45 and one side face ofwhich abuts theshoulder 47. The portion 50 is provided with a tubular bearing 53 andencircling such hearing is a sleeve 54, the outer end of which is formedwith an outwardly directed, circumferentially extending flange 55whichbea-r's against an end face of the head45. The bearter.

ing 53 and sleeve 54 are maintained in position by means of a suitablewasher 56 and nut 57 which is threaded on a reduced threaded end 58 ofthe portion 50.

The portion 49 is provided with a tubular bearing 59, the inner end ofwhich is flush With the shoulder 47 and the outer end of which is, flushwith the shoulder 48. The portion 49 and bearing 59 extend a substantial distance beyond an outer end face of the head 45 and rotatablymounted on the projecting end portion of the bearing 59 is a gaugeroller 60. Mounted on the portion 51 to rotate therewith is a cutterelement 61 which is substantially disc-shaped and prois threaded on areduced threaded end 64 of v the portion 51. An endless chain 65 iscarried by the sprocket sleeve 39 and sprocket 52 to provide for therotation of the spindle 46.

The cutter mechanism 38 may be adjusted with respect to a log securedbetween the log engaging elements 31 and 32 by means of a crank 66 whichextends longitudinally of the machine and which is suitably journaled inthe ends of the frame 1. Carried by one end of the crank 66 is anoperating lever 67 which is provided with a latch mechanism 70 forengagement with a rack 71 se cured to the frame 1, at one end of thelat- Depending from the arm 42 is a U- shaped bar 72 which projectsbeneath the chain 65 for engagement with the crank 66.

Secured to the arm 42 and projecting from frame 76 is a pair of spacedsupporting memhers 77 through which the rod 74and threaded'shaft 15extend. Mounted between the supports .77, on opposite sides of the shaft15, is a pair of nut sections 78 and 79. The upper section 7 8 is formedat one endwith a flange 80 which extends continuously around the top andsides of the section with that portion which extends from the sidesbeingdisposed within grooves 81 formed in the inner faces of the'supports 77at one edge face of the latter. The lower section 79 is formed atone endwith a flange 82 which extends continuously around the sides and bottomof the section with'the portions projecting from the sides disposedwithin" the grooves 81., The opposed faces ofthexsecimam-gen of a block83 secured to the edge faces ofthe supports 77 and extending across theends of the sections at which the flanges 80 and 82 are formed.

Carried by the block 83 is ahandle member 84, the upper end of whichconforms in contour to the block 83 and is pivotally secured thereto bymeans of a pivot pin 85 .pin 89 is formed on the flanged end of thelower section 79 and projects through the slot 87.

With the handle member 84 disposed vertically, the pins 88 and 89 arepositioned at the inner ends of the slots 86 and 87 and 7 upon swingingthe handle member 84 about its pivot, the pins 88 and 89 are caused toride along the walls of the, slots 86 and 87 whereby the sections '78and 79 are moved away from each other. WVhen the pins 88 and 89 aredisposed at the inner ends of the slots 86 and 87, the'threads. of thesections are in engagement with the threads of the shaft 15.

Secured to the carriage is .a cable 90 which passes over a pulley 91mounted at one end of the frame 1 and to the outer end of which issecured a suitable weight 92.

In the operation of my improved bark peeling machine, a log of suitablelength is positioned on the V-shaped head 23 of the supporting andadjusting members 16 and by manipulation of the operating lever 28, theends'of the log are brought into alignment with the log engagingelements 31 and 32. The element 32 is then tightened to engage one endof the log and force the other end thereof into engagement with thespurred face of the element 31 after which the'heads 23 of the adjustingmembers 16 are withdrawn from engagement with the log by manipulation ofthe lever 28. The operating shaft 2 is then rotated by the applicationof any suitable power to the pulley 3 which causes the log to .berotated by the shaft 10 and element 31 carried thereby and also causesthe cutter element 61 to be rotated in the same direction as the log.The teeth 62 of the cutter element 61 rest on the peripheral surface ofthe log and due to the loose mounting of the arm 42 on the sprocketsleeve 39, the arm is free to oscillate in order that the teeth 62 ofthe cutter element may be con- "Iwasher adjacent the opposite end of thespin- =Estantiymaintained in: contactwvith the. rotatingiperiplreralssurface ofithe log.

=Ihe Rde'pth I of font of tli'e cutter element is "regulated; by thegauge-"roller 60, the radius (if which, pl'us the depth of 'cut desired,

slipiild be-equal to the radius of the cutter element 61. Simultaneouslywith the rotation "of the log and cutter element, the

ithreadeil slraft" 15 5s rotated which" causes the carriage 75 -'to move'longitudinally of the Kl shaft 1-5, th'ereby movin'g the cutter mecha-*nism "'38 longitudinally ofithe operating-shaft 2. When the-puttermechanism 38 hastraveiled-the lengthof thelog, the 'same may be returnedto the starting end of the machine by #swingingthe ha-nd-lemember 84about its pivot to disengage the nut sections 78 and 79 from the shaft15, thereby permitting the carriage 75 to freely slide along the rod 74.

It is thought thatthe many advantages of a bark peeling machine inaccordance with this invention'will be readily apparent,,andalthough thepreferred embodiment of the invention --is as illustrated and described,yet it is to be understood that various changes in the size, shape andarrangement of parts may be resorted to, so long as such changes fallwithin the scope of the invention as defined in the appended claims.

What I claim is 1. Ina bark peeling machine, a supporta one side of thebifurcation therein and having 7 a flange abutting the outer face ofsaid portion, a tubular bearing extending through the portion of thehead at the opposite side 3 of the bifurcation therein and projectingmaterially from the outer'face of the last mentioned portion, a tubularbearing extendingv through said sleeve, .a spindle extending throughsaid tubular bearings and projecting w therefrom at opposite sides ofsaid head, said spindle having a pair of shoulders flush with the endsof the first named tubular bearing, a cutting element non-rotatablymounted on said spindle,'a nut threaded on one end of the spindle formaintaining the cutting element in abutment with one of said shoulders,a

I sprocket non rotatably mounted on the spindle adjacent the other ofsaid shoulders, a

dle, and a nut threaded on the opposite end of the spindle formaintaining the sprocket in abutment with the shoulder adjacent thereto.

2. In a bark peeling machine, arotatable operating shaft, a sleeveslidably and non carried by'said opposite end and extending a across thebifurcation therein, said spindle having a central portion of greaterdiameter than the end portions thereof, a cutter eleinent mounted on oneof said end portions to rotate therewith, a sprocket mounted on theother of said end portions to rotate therewith and disposed in saidbifurcation, an endless chain extending around said sprockets, asubstantially U-shaped bar secured to said arm and depending below saidchain, and a crank extending beneath said bar transversely thereof foradjusting said arm With respect to the rotatable mounting therefor.

In testimony whereof, I afliX my signature hereto.

WALTER LEE MINGLEDORFF.

